/// <summary>
/// 允許應(yīng)用程序通過防火墻
/// </summary>
/// <param name="appPath">應(yīng)用程序的絕對路徑</param>
/// <exception cref="FileNotFoundException">未找到程序文件</exception>
public static void AllowAppUseFirewall(string appPath)
{
    if(System.IO.File.Exists(appPath)==false)
    {
        throw new System.IO.FileNotFoundException("未找到程序文件");
    }
    //創(chuàng)建firewall管理類的實(shí)例： Type的GetTypeFromProgID是通過注冊表信息項(xiàng)目創(chuàng)建實(shí)例類型
    INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
    //以程序名為規(guī)則名創(chuàng)建規(guī)則，以便查詢
    string name = System.IO.Path.GetFileNameWithoutExtension(appPath);
    NET_FW_PROFILE_TYPE_ currentProfileType = netFwMgr.CurrentProfileType;
    //查找防火墻規(guī)則中是否已有同名規(guī)則存在
    foreach (INetFwAuthorizedApplication item in netFwMgr.LocalPolicy.GetProfileByType(currentProfileType).AuthorizedApplications)
    {
        if (item.Name == name)
        {
            return;
        }
    }
    //創(chuàng)建一個(gè)認(rèn)證程序類的實(shí)例
    INetFwAuthorizedApplication app = (INetFwAuthorizedApplication)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwAuthorizedApplication"));
    
    //在例外列表里，程序顯示的名稱
    app.Name = name;
    //程序的絕對路徑，這里使用程序本身
    app.ProcessImageFileName = appPath;
    //端口的范圍，針對哪類或哪個(gè)IP地址
    //objPort.Scope = NET_FW_SCOPE_.NET_FW_SCOPE_ALL;
    //此處可以指定IP地址版本信息
    //objPort.IpVersion = NET_FW_IP_VERSION_.NET_FW_IP_VERSION_V4;
    //是否啟用該規(guī)則
    app.Enabled = true;
    //加入到防火墻的管理策略
    netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications.Add(app);
}
/// <summary>
/// 移除應(yīng)用程序通過防火墻
/// </summary>
/// <param name="appPath">應(yīng)用程序的絕對路徑</param>
public static void RemoveAppUseFirewall(string appPath)
{
    INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
    //參數(shù)為程序的絕對路徑
    netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications.Remove(appPath);
}